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Goal for week 6: Programming with loops and decisions

Summary of new tools and commands.

• for a loop construct to execute a block of commands for successive values of a variable
• if execute a block of commands if a logical expression is true.
• elseif, else execute blocks of commands based on alternative logical tests.
• while a loop construct to execute a block of commands while a test logical expression is true.
• end marks the end of the block of commands associated with for, if and while.
• > >= < <= == ~= logical comparison operators
• logical operators: & for "and", | for "or" and ~ for "not".
• fopen opens a file for reading or writing.
• fprintf prints information to a file under format control.
• fclose closes access to a given file.
• eval executes a character string as a MATLAB command.

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